JP2001517801A - Method and apparatus for determining the location of a cellular mobile terminal - Google Patents

Abstract

(57) [Summary] The distance between a mobile radio station (MS) (208) and a radio base station (BS) (BS0, BS1, BS2) is determined by the apparent uplink and downlink signal propagation times (eg, T-up A method (500) and an apparatus (200) for determining by reciprocation calculation using (T and T down) are disclosed. No absolute time reference is required. The MS and BS report the transmission and arrival local time (308, 328) of the uplink and downlink signals (212-215) to the service node (203) in the mobile network (200), and the apparent propagation time ( T up and T down). The distance D between the MS and the BS can be calculated as D = c (T up + T down) / 2. Here, c is the speed of light. Using the distance to at least three base stations D1, D2, D3 whose positions are known, the position of the MS is determined by a triangulation algorithm.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001] The present invention relates generally to the field of mobile radio communications, and more particularly to an improved method and apparatus for determining the location of a mobile radio terminal.

Description of the Prior Art In the field of cellular communications, determining the location of mobile radio terminals has become increasingly important. Authorities defining the specifications and standards for mobile wireless communication systems rely on specifying the accuracy required to determine the location of mobile terminals. To date, the best way to determine the location of a mobile terminal is to obtain the distance based on the measured signal propagation time. The measurement of the propagation time is performed on the uplink (the transmission from the mobile terminal is measured by the base station) or the downlink (the transmission from the base station is measured by the mobile terminal).

[0003] For example, Ghosh et al., World Intellectual Property Organization Application No. WO 96/35958 (
"Ghosh") discloses a method and apparatus for determining the location of a mobile terminal (eg, according to the IS-95 standard) in a code division multiple access (CDMA) communication system. Ghosh's application is based on the absolute arrival time (TO) of the signal transmitted by the mobile terminal.
A) teaches how to make the measurements of at least two base stations. Convert these TOA measurements to distance. Next, the position of the mobile terminal is determined using triangulation. However, position determination by the disclosed TOA method requires the use of a very precise or "accurate" time reference (eg, provided by the Global Positioning System GPS using satellites).

[0004] Lundqvist et al. Patent Cooperation Treaty (PCT) Patent Application No. PCT / SE
No. 97/00219 (and related US patent application Ser. No. 08 / 799,039).
(Lundqvist) discloses a method and apparatus for determining the location of a mobile terminal in an asynchronous environment (eg, without using an “accurate” time reference). In this case, the downlink propagation time is measured using a plurality of fixed location "reference" wireless terminals whose locations are known. Determine the relative transmission time offset between base stations,
Using this, the position of the mobile terminal is obtained.

[0005] PCT Patent Application No. PCT / SE96 / 035 61-3 by B. Bergkvist et al. (And related US Patent Application No. 60 / 028,345) (hereinafter "Bergkvist") is disclosed, for example, in Mobile Communications. A method and apparatus for determining the location of a mobile terminal in a cellular mobile radio system such as the Global System for Services (GSM) is disclosed. The mobile terminal is instructed to perform a series of handovers to a plurality of target base stations. The mobile terminal sends an access burst to the target base station. However, the target base station does not transmit a confirmation message that the access burst has been received. The mobile terminal then returns to its serving base station.
The target base station measures the round-trip propagation delay (base station-mobile terminal-base station) using the received access burst. Therefore, no time reference signal is needed to obtain the location of the mobile terminal.

A disadvantage of the method disclosed in the above-mentioned Ghosh application is that the base station needs to use a global time reference, such as a GPS signal, to accurately determine the location of the mobile terminal. Similarly, the method disclosed in the Lundqvist application does not use a global time reference, but instead employs the complicated location of a fixed location "reference" wireless terminal with known locations to obtain relative base station timing offsets. Use a simple system. A disadvantage of the Bergkvist application is that it uses a measurement of round trip propagation delay obtained by performing a series of aborted handovers. This method takes a considerable amount of time to complete and requires independent access to multiple base stations.
Sending a burst causes a large disturbance. However, these access bursts are only generated to determine the location of the mobile terminal.

[0007] Accordingly, the location of a mobile terminal is determined by using the basic functions of a cellular mobile radio system without using a complex time reference, a "reference mobile terminal", or an aborted handover "disturbance". It is desirable to do. As described below, the present invention provides this function and solves the above-mentioned problem.

SUMMARY OF THE INVENTION One problem addressed by the present invention is a method for measuring the distance between a base station and a mobile without using a global time reference. Another problem that is addressed by the present invention is that in an asynchronous mobile radio system (without using a global time reference) additional positioning devices (eg, a "reference" radio terminal for determining the time offset between base stations) This is a method of determining the geographical position of the mobile terminal without using the method.

Yet another problem that is the subject of the present invention is that the geographical location of the mobile wireless terminal can be reduced without generating unnecessary “disturbances” (eg, access bursts transmitted for aborted handovers). This is a method for determining the position. It is therefore an object of the present invention to provide digital or analog (mobile)
However, it is possible to provide a method and apparatus for determining the location of a mobile terminal operating in interactive mode directly on a traffic channel (which can carry digital information). Another object of the present invention is to provide a mobile radio system, for example, for CDMA, high bandwidth CD.
It is an object of the present invention to provide a method and apparatus for achieving the above-mentioned object in a system such as MA (WCDMA) and time division multiple access (TDMA).

Yet another object of the present invention is to provide a system for transmitting and measuring in a known information pattern (that is, no need to transfer variable information) to perform a position determination function, the above-described object. To provide a method and apparatus for achieving Yet another object of the present invention is to determine the relative time offset of a transmission from a radio base station using one mobile terminal and then apply this to determine the position of another mobile terminal. It is another object of the present invention to provide a method and apparatus for achieving the above-mentioned object.

The present invention achieves the above and other objects by using a novel method and apparatus for determining the location of a mobile terminal in a cellular mobile radio system. Examination of the air traffic timetable to analogy from the air traffic sector shows that the departure and arrival of the aircraft are in local time. Considering the air traffic between two cities east and west (for example, Dallas and Stockholm), the local time of the two cities may differ by several hours. Thus, when calculating arrival times in a timetable using local time, the apparent flight time required to fly from one city to the other (eg, from Dallas to Stockholm) is calculated by traveling the airline in the opposite direction (eg, Stockholm). From Dallas) to the apparent flight time required to fly. However, it is relatively easy for travelers to calculate the actual flight time,
Add the apparent flight time from east to west (eg, Dallas to Stockholm) and the apparent flight time in the opposite direction (eg, Stockholm to Dallas),
The result may be divided by two. With this “round trip” calculation, the result is irrelevant for both local times, as the “lost” time on one trip is “earned” on the reverse trip. Finally, the distance between the two cities can be determined by multiplying the calculated real time by the speed of the flying aircraft.

Similarly, the present invention uses a round-trip calculation method. That is, the distance between the mobile radio station (MS) and the radio base station (BS) is determined using the apparent uplink and downlink signal propagation times (eg, T-up and T-down). In this case, no absolute time reference is needed. The MS and BS inform the service node of the mobile network of the originating and arriving local times of the uplink and downlink signals and calculate the apparent propagation times, T-up and T-down. The distance D between MS and BS can be calculated by the following equation. D = c (T up + T down) / 2 (1) where “c” is the speed of light.

In the first embodiment of the present invention, the distance between the MS and a specific radio base station (BS1) is determined by the following new round-trip method. A network controller (eg, a mobile services switching center or MSC) sends a first measurement order to BS1, and a first signal (eg, a conventional training sequence) transmitted by the MS (uplink) within a specified time window. )
BS1 to measure the local time of arrival (L-TOA-U). For downlink transmission, BS1 typically periodically transmits a second signal (eg, a pilot signal in a WCDMA system) on the downlink at the transmission local time (L-TOT-D). All MSs can receive these second signals. This allows the network controller to send a dedicated signal on the downlink at the designated time.
There is no need to order one. The network controller sends a second measurement order to the MS via the serving BS (BS0) and sends a first signal (uplink) within a designated time window to transmit its exact transmission local time (L- MS to report TOT-U)
Command. The second measurement command also instructs the MS to measure and report the local time of arrival (L-TOA-D) of the second signal (downlink) transmitted by BS1. Further, the first and second instructions identify downlink and uplink radio channels used for transmission and measurement as described above. The MS and BS1 report each L-TOA-D and L-TOA-U measurement to the network controller, which forwards this information along with the identity of the MS to the processor in the network service node. Using Equation 1 shown above, the processor calculates the distance between MS and BS1.

In a second embodiment of the present invention (eg, in a CDMA or WCDMA system), the propagation times from the MS to the serving BS (BS0) are denoted by BS0 and M
It can be determined in a new way to set up a connection (eg a call) between S. By using the conventional matched filter method, the round trip delay of the connection can be determined. Dividing the obtained round trip delay value by 2 and multiplying the result by the speed of light gives the distance between MS and BS0. The same method can be used to determine the distance between the MS and two neighboring BSs (BS1, BS2). Next, the position of the MS is determined using a conventional triangulation algorithm.

In a third embodiment of the present invention (eg, in a TDMA system), the MS
Is determined by a conventional timing advance (TA) method. As in the second embodiment, the round trip delay can be determined by using the conventional matched filtering method. The distance between MS and BS0 is
It is calculated by dividing the round trip delay by two and multiplying the result by the speed of light.
Also in this case, the same method can be used to determine the distance between the MS and two adjacent BSs (BS1, BS2). Next, using a conventional triangulation algorithm, M
Determine the position of S.

In a fourth embodiment of the invention, the network service node is one MS (MS1)
And the resulting distance from MS1 to neighboring base stations (eg, BS1, BS2), using the neighbor B to BS (BS0) serving MS1
Determine the (transmit) time offset of S. Next, the position of the second MS (MS2) is
The decision is made according to the conventional uplink or downlink TOA method. actually,
Since the clock of each BS drifts, the position of MS1 must be determined just before the measurement of MS2. Neighboring BSs report the local time TOA to the service node via the network controller (eg, MSC). The service node already knows the time offset of the neighboring BS.

A fifth embodiment of the present invention provides a wireless BS that determines the position of an MS using a reciprocating position determination method. The BS includes a controller with a local clock. Upon receiving the report command, the controller receives the downlink transmission local time (L-TOT-D) and the uplink arrival local time (L-TOA-U) of the downlink and uplink timing sequences between the BS and the MS. Report. The BS also includes a transmitter that reports the time (L-TOT-D) when the signal was transmitted on the downlink to the control device. It also includes a receiver that uses a matched filter or a sliding correlator to determine the time (L-TOA-U) when the signal was received on the uplink. The receiver reports this time information to the controller.

The sixth embodiment of the present invention provides a wireless MS that determines its own position using the same reciprocating position determination method used for the BS in the fifth embodiment. Wireless MS
Includes a controller having a local clock. When the control device receives the report command,
The uplink transmission local time (L-TOT-U) and the downlink arrival local time (LT-T) of the downlink and uplink timing sequences between the mobile station and the radio BS.
OA-D). In addition, the MS transmits the time (L-
TOT-U) to the controller. It also includes a receiver that uses a matched filter or a sliding correlator to determine the time (L-TOA-D) when the signal was received on the downlink. The receiver reports this time information to the controller.

The present invention and an important technical advantage are that the positioning method used is a time-synchronized BS,
It does not require a time reference or a "reference" terminal whose location is known. Also, the present invention does not generate unnecessary access burst "disturbances". Another important technical advantage of the present invention is that, for example, CDMA, WCDMA, TDM
A, It can be applied to any mobile communication system including frequency division multiple access (FDMA) and analog systems. However, these systems are capable of carrying digital information on the uplink and downlink, and their BSs and MSs are capable of measuring transmission and local time of arrival.

[0020] Yet another important technical advantage of the present invention is a time reference (eg, a GPS reference signal).
Can also be used in the BS, which eliminates the need to perform downlink or uplink measurements. Yet another important technical advantage of the present invention is that an already located MS can be used as a "reference" terminal to determine the timing offset of neighboring BSs. Thus, the present invention can reduce the number of measurements required to determine the location of another MS.

DETAILED DESCRIPTION OF THE DRAWINGS The preferred embodiment of the present invention and its advantages can be better understood with reference to FIGS. In the respective drawings, the same or corresponding parts are denoted by the same reference numerals.

FIG. 1 shows a schematic block diagram of a cellular mobile radio system 200. In the present invention and the preferred embodiment, a method (without using a time reference) of determining the location of a mobile radio station using system 200 can be implemented. System 200 includes a plurality of radio base stations. For simplicity, only three of the multiple radio base stations are shown. That is, BS0 (the base station serving the mobile radio station whose position is to be determined) and two adjacent base stations BS1 and BS2. Preferably, BS
0, BS1, BS2 are at different sites defining different cells, all connecting to a wired network (eg, Public Land Wireless Network or PLMN) via communication link 201. In the exemplary embodiment shown, the network is, for example, a mobile services switching center (
MSC) 202. This network controller connects to the service node mobile positioning station (MPC) 203 via the public switched telephone network or PSTN (not shown). MSC 202 is a lookup table 20
4, the look-up table 204 associates a particular radio channel with a particular mobile radio station (eg, MS 208). The look-up table (204) function allows the MSC 202 to report uplink and downlink signaling and arrival times to the service node MPC 203 and correlate these times with the associated mobile station (eg, MS 208). it can. Each MS has a wireless air interface (eg, BS0 and MS20).
8 with the BS via the air interface 211).

In this embodiment, service node MPC 203 includes a processor 203a. The processor 203a further includes a receiving unit 203b, a storage unit 203c.
, Transmission unit 203d, first and second calculation units 203e and 203f
including. The processor 203a stores the geographical location information of each BS in a storage unit 203c.
To hold. Computing units 203e and 203f may store the stored BS location information and the reported transmission and arrival local time (UL) of the uplink and downlink signals.
(From MSC 202) to calculate the location of the relevant MS (eg, MS 208).

For example, using the first calculation unit 203e, the MS (eg, MS 208)
The round-trip distance D between the BS and the BS (for example, BS1) is calculated as follows. The reported transmission local time (L-TOT-U, L-TOT-D) and the arrival local time (L-TOA-U)
, L-TOA-D), D = c (T up + T down) / 2 (2) where T-up = (L-TOA-U-L-TOT-U) (3) T-down = ( L-TOA-D-L-TOT-D) (4) The target MS (for example, MS 208) using the second calculation unit 203f.
) Calculate the position. For this, round trip distance information D between the MS and at least three radio base stations (for example, BS0, BS1, and BS2) is used.

Optionally, the second computing unit 203f may use any reported direction of arrival (DOA) information (if available from the antenna array) for the MS
Can also be determined. In this case, the position of the MS is simply the round trip distance D,
It can be obtained from DOA information for one BS. That is, the MS is at a certain distance (DOA) from the relevant BS. The storage unit 203c is a wireless base station of the network (for example, BS0, BS1, BS2)
Hold the known position of. Receiving unit 203b and transmitting unit 203d communicate with service node MPC 203 with a network controller (MSC 202) and with subscribers requesting / receiving MS location information (eg, using the short message service SMS function). To provide a means for

In operation, the MS whose position is to be determined is referred to as MS 208. The illustrated bidirectional link 211 represents a signaling connection (eg, a call) between the MS 208 and the serving BS0. The MSC 204 sends a command message to the MS 208 via the connection 211 to instruct the MS 208 to perform a position determination function. MS20
8 reports the transmission and arrival local time via connection 211, BS0 receives it and communicates it to MSC 202. Uplink signal connections 212 (to BS1) and 213 (to BS2) represent the position determination sequences transmitted on the uplink and received by BS1 and BS2, respectively. In this exemplary embodiment, the position determination sequence information need only be a predetermined time mark. Similarly, the downlink signal connection 21
4 (from BS1) and 215 (from BS2) are the BSs in the downlink, respectively.
1 and the position determination sequence transmitted by BS2 and received by MS 208. In this embodiment, the position determination sequence information need only be a predetermined time mark. However, in different embodiments, these predetermined time marks are CDMA or WCD
It may be realized as a pilot signal transmitted by BS1 and BS2 in the MA system.

The distance from the adjacent base stations (BS 1, BS 2) to the MS (208) can be determined by the reciprocating position determination method described above. The serving base station (BS0
) To the MS (208) can be determined by a conventional time advance distance measurement (eg, in a TDMA system) or a conventional matched filter distance measurement (eg, in a CDMA or WCDMA system). . Next, using these distances between the MS (208) and the base stations (BS0, BS1, BS2) and the known BS position information, the position of the MS is determined by a triangulation algorithm.

FIG. 2 is a schematic block diagram of a radio base station and a mobile radio station constructed according to a preferred embodiment of the present invention. In this embodiment, the radio base station BS1 (or B
S2,. . . , BSn) and the mobile station MS 208 are part of a WCDMA system. BS1 includes one transmitting antenna 301 and two receiving antennas 302. The pair of receiving antennas 301 form spatial diversity for wireless traffic and for the uplink measurement of the present invention. BS1 also includes a transmitter 303, a receiver 304, and a matched filter 3, preferably implemented as a finite impulse response (FIR) filter.
05 inclusive. FIR filter 305 (connected to receiver 304) determines the time at which uplink signal 309 arrived at BS1 using a conventional timing scheme, and using this, the scheme determines the position of MS 208. The control unit 306 reads the uplink arrival local time (L-TOA-U) from the local clock 308 (via the connection 307 from the FIR filter 305 at the reported time) and reads this information along with the associated radio channel identification information to the MSC 202. Send to

The MS 208 is configured to implement this new MS location method corresponding to BS1. In this embodiment, MS 208 includes a transmit / receive antenna 321. The antenna 321 is connected to the receiving unit 324, the transmitting unit 323, and the transmitting / receiving unit 323. A matched filter 325 (also implemented as an FIR filter) connects to the receiver 324. FIR filter 325 uses a conventional timing technique to determine when downlink signal 310 arrives at MS 208, and with this the method determines the location of MS 208. The control unit 326 controls the local clock 32
8 (via the connection 327 from the FIR filter 325 at the reported time) and read the local time of arrival (L-TOA-D) of this downlink, along with the associated radio channel identification information in signal path 329, transmission. / Receiver 330, antenna 3
21, the air interface 331, to the MSC 202 via the serving radio base station BS0.

The control unit 326 generates an uplink signal 309, and the MS 208 transmits the uplink signal 309 via the transmitting unit 323 and the antenna 321. The uplink signal 309 received by the relevant base station (eg, BS1) is used to implement the method for determining the location of the MS. Thus, the control unit 326 reads the transmission local time (L-TOT-U) of the uplink signal 309 at the local clock 328 and sends this information to the MSC 202 along with the associated radio channel identification information. The MSC 202 looks up the look-up table 204 (FIG. 1) to determine the location of the mobile station (
For example, the identity of the MS 208) is determined. The lookup table is a known B
In addition to the S location information, it holds the associated radio channel that carries the individual signals 211, 212, 213, 214, 215. When setting up a call between the serving base station BS0 and its associated MS (208), these signals are stored in a look-up table and a command message is sent to initiate the method for determining the location of the MS. Is done.

FIG. 3 is a flowchart illustrating a method 500 for determining the location of a mobile radio station, which may be implemented by the embodiments shown in FIGS. In this embodiment,
System 200 is a CDMA mobile radio system. At step 501, service node MPC 203 receives a request to determine the location of a mobile radio station (eg, MS 208). For example, the request enters MPC 203 as a short text message from the subscriber. At step 502, MPC 203 receives this request and sends a command message via MSC 202 and serving BS0 to MS2.
08 and instructs MS 208 to start its own position determination function. Positioning is performed using the positions of the serving BS0 and adjacent base stations BS1 and BS2 as inputs to a conventional triangulation algorithm. In step 503, BS0
Round trip delay (BS0-MS-BS0) using conventional matched filtering / correlation method
Is calculated, and the distance between itself and the MS 208 is determined, and the determined distance information is reported to the MPC 203 via the MSC 202.

In step 504, the MS 208 measures the local time of arrival (L-TOA-D1 and L-TOA-D2) of the (pilot) signals transmitted from BS1 and BS2, respectively, and determines these local times of arrival at BS0. And the MPC 203 via the MSC 202
Report to At step 505, MPC 203 sends a command message to BS1 and BS2 via MSC 202, instructing BS1 and BS2 to "listen" for positioning data transmitted on the uplink from MS 208 during a predetermined time period. Step 5
At 06, MPC 203 sends a command message to MS 208 via MSC 202 and BS0, transmits positioning data during a predetermined time period, and transmits BS0 and MSC2.
02 instructs the MS 208 to report the correct transmission time (L-TOT-U) to the MPC 203.

At step 507, BS 1 and BS 2 use conventional correlation methods to determine the local time of arrival (L-TOA-U 1 and L-TOA-U 2) of the positioning data transmitted during the predetermined period.
) Is measured. In step 508, BS1 and BS2 determine the local time (L-TOT-D1 and L-TOT-D2) of the transmission signal and the local time (L-TOA-U1 and L-TOA-L) of the received signal. U2) via the MPC via the MSC 202
Report to 203. At step 509, MPC 203 calculates the location of MS 208 using the known BS location and the reported local time according to Equations 2-4 described above.

As will be appreciated, in the present invention, when reporting the transmitting local time from MS 208,
The uplink signal from MS 208 may be transmitted at any suitable time. However, in the conventional method, the uplink signal transmitted from the mobile station whose position is to be determined is determined by the known absolute time related to the timing of the serving base station and the distance between the serving base station and the mobile station. Send to Unlike conventional methods, BS1
Using the method of the present invention shown in FIG. 3 to determine the distance between the MS and the MS 208 and between the BS 2 and the MS 208, the steps 504-50 are used instead of the steps 503 described above.
By performing step 8, the distance between the serving base station and the mobile station can be determined.

While preferred embodiments of the method and apparatus of the present invention have been illustrated in the accompanying drawings and described in the foregoing detailed description, it is to be understood that the present invention is not limited to the embodiments disclosed herein. However, various redesigns, modifications, and alternatives are possible without departing from the spirit of the invention as defined and defined in the appended claims.

[Brief description of the drawings]

The method and apparatus of the present invention may be better understood with reference to the detailed description, taken in conjunction with the accompanying drawings.

FIG. 1 is a schematic block diagram of a cellular mobile radio system used to implement a method of determining the location of a mobile radio station (without using a time reference) according to a preferred embodiment of the present invention; .

FIG. 2 is a schematic block diagram of a radio base station and a mobile radio station constructed according to each embodiment of the present invention.

FIG. 3 is a flowchart showing a method for determining a position of a mobile radio station, which can be realized by the embodiment shown in FIGS. 1 and 2;

[Procedure amendment]

[Submission date] April 5, 2000 (200.4.5)

[Procedure amendment 1]

[Document name to be amended] Statement

[Correction target item name] Claims

[Correction method] Change

[Correction contents]

[Claims]

──────────────────────────────────────────────────続 き Continuation of front page (81) Designated country EP (AT, BE, CH, CY, DE, DK, ES, FI, FR, GB, GR, IE, IT, LU, MC, NL, PT, SE ), OA (BF, BJ, CF, CG, CI, CM, GA, GN, GW, ML, MR, NE, SN, TD, TG), AP (GH, GM, KE, LS, MW, SD, SZ, UG, ZW), EA (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM), AL, AM, AT, AU, AZ, BA, BB, BG, BR, BY, CA, CH, CN, CU, CZ, DE, DK, EE, ES, FI, GB, GE, GH, GM, HR, HU, ID, IL, IS, JP, KE, KG, KP , KR, KZ, LC, LK, LR, LS, LT, LU, LV, MD, MG, MK, MN, MW, MX, NO, NZ, PL, PT, RO, RU, SD, SE, SG, SI, SK, SL, TJ, TM, TR, TT, UA, UG, UZ, VN, YU, ZWF term (reference) 5J062 AA08 BB01 CC07 5J070 AC01 AD02 AE01 AH39 BD01 BD10 5K067 AA33 BB02 DD19 DD20 DD57 EE02 EE10 EE16 EE24 HH22 HH23 JJ53 JJ56 JJ65

Claims (26)

[Claims] 1. A method for determining a round trip propagation time between a mobile radio station and a first radio base station, wherein the mobile radio station and the first radio base station each include an uplink signal and a downlink signal. Wherein the mobile radio station and the first radio base station each determine a local time for receiving the downlink signal and the uplink signal, one local time for the transmission and one local time for the reception. Calculating an apparent uplink propagation time from local time, calculating an apparent downlink propagation time from the second transmitting local time and the receiving local time, the apparent uplink propagation time and the apparent downlink propagation Adding the time to obtain the round trip time, a method of determining the round trip time. 2. The method of claim 1, further comprising: determining a distance between the mobile radio station and the first radio base station by multiplying the round trip time by the speed of light and dividing by two. 2. The method for determining the round-trip propagation time according to 1. 3. The round trip propagation time between the mobile radio station and the second radio base station is determined by performing the steps of claim 1 again for the mobile radio station and the second radio base station. The method of claim 1, further comprising the step of: 4. A method for determining a position of the mobile radio station, comprising: a first radial distance between the first radio base station and the mobile radio station; and a second radio base station and the mobile radio station. Determining a second radial distance between the radio stations by multiplying each of the round-trip propagation times by the speed of light and dividing by two; the first radial distance and the second radial distance The method of claim 3, further comprising: determining a plurality of intersections; and selecting the position from the plurality of intersections. 5. A method for determining a position of the mobile radio station, comprising: determining a distance between the mobile radio station and the second and third radio base stations for the second and third radio base stations. The steps 1 and 2 are performed again to determine the mobile radio station and the first radio base station, the mobile radio station and the second radio base station, the mobile radio station and the 3. The method of claim 2, further comprising the step of triangulating a distance between the third radio base stations. 6. The method of claim 2, further comprising the step of determining the location of the mobile radio station for four or more radio base stations using an arrival time algorithm. 7. Receiving an arrival signal in at least one direction with respect to the mobile radio station and at least one radio base station, and determining a direction of the arrival signal and a signal between the mobile radio station and the first radio base station. The method of claim 2, further comprising: determining a location of the mobile radio station from a distance. 8. The apparent uplink propagation time is equal to the local time of arrival of the uplink signal minus the local time of transmission of the uplink signal, and the apparent downlink propagation time is the downlink signal. The method of claim 1, wherein the round-trip propagation time is equal to a local time of arrival minus local time of transmission of the downlink signal. 9. The method of claim 2, wherein the calculating, adding, and multiplying are performed at a mobile network service node. 10. A method for determining a distance between a mobile radio station and a first radio base station, wherein the mobile radio station and the first radio base station transmit an uplink signal and a downlink signal, respectively. Determining a local time, wherein the mobile radio station and the first radio base station determine a local time for receiving the downlink signal and the uplink signal, respectively; one transmitting local time and one receiving local time; Calculate the apparent uplink propagation time from the second, and calculate the apparent downlink propagation time from the transmitting local time and the receiving local time, and calculate the apparent uplink propagation time and the apparent downlink propagation time. Adding the round trip time to multiply the round trip time by the speed of light and dividing by two. 11. A method for determining a distance of a mobile radio station in a mobile communication system, comprising: establishing a connection between the mobile radio station and at least one radio base station in the mobile communication system; Calculating an apparent uplink propagation time and an apparent downlink propagation time of the connection between the mobile base station and the at least one radio base station; Adding a downlink propagation time to obtain a round trip propagation time of the connection, and determining the distance of the connection by multiplying the round trip time of the connection by the speed of light and dividing by two; A method for determining the distance of a mobile radio station. 12. The position of the mobile radio station, a first radial distance between the first radio base station and the mobile radio station, and a distance between a second radio base station and the mobile radio station. A second radial distance is determined by multiplying the round trip propagation time of each of the radio base stations by the speed of light and dividing by two; and determining the first radial distance and the second radial distance. The method of determining a distance of a mobile radio station according to claim 11, further comprising: determining a plurality of intersections; and selecting the position from the plurality of intersections. 13. The step of claim 12, wherein the position of the mobile radio station, the distance between the mobile radio station and the second and third radio base stations, and the second and third radio base stations are determined. Is executed again. The mobile radio station and the first radio base station, the mobile radio station and the second radio base station, the mobile radio station and the third radio base station 12. The method of determining a distance of a mobile radio station according to claim 11, further comprising: triangulating using the distance between radio base stations. 14. The mobile of claim 11, further comprising determining a location of the mobile radio station using an algorithm of time of arrival for four or more radio base stations connected to the mobile radio station. A method for determining the distance of a radio station. 15. The apparent uplink propagation time of each of the connections is equal to the local time of arrival of each uplink signal minus the local time of transmission of each uplink signal, and the apparent downlink propagation time. The method of claim 11, wherein the time is equal to the local time of arrival of each downlink signal minus the local time of transmission of each downlink signal. 16. The method of claim 11, further comprising using at least the distance and at least one other distance measurement of the connection to determine a location of the mobile station. how to. 17. The method of claim 11, wherein the connection comprises a call. 18. The method of claim 11, wherein the connection includes link communication data. 19. The method further comprising determining a position of the mobile radio station, wherein an uplink signal of the mobile radio station is synchronized with a downlink signal of the at least one radio base station and the at least one radio base station. The method of determining a distance of a mobile radio station according to claim 11, wherein the radio base station uses a known round-trip time delay in the connection between the at least one radio base station and the mobile radio station. 20. A method for determining a position of a mobile radio station, comprising: measuring a round trip delay between at least one serving radio base station and the mobile radio station; The mobile radio station measures the local time of arrival of signals from a plurality of radio base stations, and reports the local time of arrival of the signal to the network processor; Transmitting a signal and reporting the local time of transmission of the location data signal to the network processor; the plurality of radio base stations each measuring a respective local time of arrival of the location data signal; and And the measured local time of the arrival of the signal for the position data signal to the network processor. Calculating the position of said mobile radio station by the time of transmission and time of local regions, comprising a method of determining the position of a mobile radio station. 21. The mobile radio station transmits the position data signal during a predetermined period, and the plurality of radio base stations each transmit the position data signal during a period including at least a part of the predetermined period. 21. The method according to claim 20, wherein the local time of each arrival is measured.
3. The method for determining a position of a mobile radio station according to claim 1. 22. The method of claim 20, wherein the network processor calculates the position of the mobile station using an arrival time estimation algorithm. 23. An apparatus for determining a distance between a mobile radio station and a first radio base station, wherein the mobile radio station determines a local time for transmitting an uplink signal and the first radio base station. Determines the local time of transmission of the downlink signal, and the first radio base station determines the local time of reception of the uplink signal, and the mobile radio station determines the local time of reception of the downlink signal. Means for calculating an apparent uplink propagation time from the uplink transmission local time and one of the uplink reception local times, the downlink transmission local time and the downlink reception local time. Calculating the apparent downlink propagation time from: adding the apparent uplink propagation time and the apparent downlink propagation time to obtain a round trip propagation time; Processing means for multiplying by the speed of light and dividing by two; and processing means. 24. The apparatus according to claim 23, wherein said processing means includes a mobile positioning station. 25. The apparatus of claim 23, wherein the downlink signal comprises a pilot signal in a CDMA system. 26. The means for each of the mobile radio stations and the first radio base station for determining a local time for transmitting an uplink signal and a local time for receiving a downlink signal includes a control unit and a local clock. An apparatus for determining a distance according to claim 23.